r.
A.three steps
B.five steps
C.four steps
D.a series of steps
37、The countries that have reduced hunger sharply in recent years include ____
A.Malaysia & India.
B.China & India.
C.India &. Singapore.
D.India & Thailand.
38、According to the passage, the green revolution is a way to increase harvests____
A.But it does not work everywhere.
B.And it works everywhere in the world.
C.but it is money consuming.
D.and it works only in India.
39、It is who suffer the most, according to the report.____
A.mothers & children
B.mothers & adults
C.mothers & teenagers
D.mothers & young children
40、The two serious medical problems linked to food shortages are____
A.lack of iodine & vitamin A.
B.lack of vitamin C & iodine.
C.lack of iodine & vitamin D.
D.all of the above.
答案：
1 C 2 D 3 B 4 B 5 A 6 C 7 A 8 A 9 C 10 C 11 B 12 B 13 C 14 D
15 B 16 C 17 B 18 D 19 A 20 C 21 B 22 C 23 C 24 B 25 D 26 C 27 B 28 C 29 D 30 C 31 B 32 D 33 A 34 A 35 C 36 C 37 B 38 A 39 D 40 A
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